What is the potential energy of the pendulum ...

ICSE Class 10 Physics 2020 Paper

SECTION - II

The figure below shows a simple pendulum of mass $200\ \mathrm{g}$ . It is displaced from the mean position A to the extreme position B. The potential energy at the position $A$ is zero. At the position $B$ the pendulum bob is raised by $5\ \mathrm{m}$ .

Question : 27 of 67

Marks: +1, -0

What is the potential energy of the pendulum at the position

B

Solution:

At the position

B

U\;=m g h

\;=\;\frac{200}{1000} \times 10 \times 5

\left(\because m=200 \; g=\;\frac{200}{1000} \; \mathrm{kg}\right)

\;=10 \mathrm{J}

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